In the complaint, which was registered in July, a user using a Xiaomi device reported receiving unsolicited telemarketing calls from abroad, a commission spokesman told The Wall Street Journal Friday.

“The commission is currently investigating the complaint,” the spokesman said, adding that he could not provide details about the user’s identity, specifics of the complaint, or any time frame for concluding the investigation.

“We have reached out to Singapore’s PDPC to clarify any issues,” Hugo Barra, Xiaomi’s global vice president and an ex-Google executive, told The Wall Street Journal Friday via email, referring to the Personal Data Protection Commission.

“We believe it is our top priority to protect user data and privacy and will continue to react swiftly, as we always have, to any feedback from the community on how we can improve our products,” he said.

The Commission “will take this seriously,” said Bryan Tan, a Singapore-based partner with law firm Pinsent Masons who specializes in data privacy law.

If an organization is found to have violated Singapore’s Personal Data Protection Act, which outlines rules for handling individuals’ data, it may be directed to stop collecting or revealing data, forced to destroy the data, provide access to the data, and may face a financial penalty of up to $1 million Singapore dollars ($800,000), the commission spokesman said.

The complaint comes after a user posted online last month that his Xiaomi smartphone was “secretly” connecting to a server in Beijing, triggering speculation that the company was transmitting users’ data without their permission.

Barra told The Wall Street Journal earlier this month that the server that user identified does not store user data and only provides a connection for services like downloading themes and apps.

It is unclear if the Singapore complaint is related to the posting last month, which was made on a Chinese language web forum.

Xiaomi became the leading smartphone vendor in China in the second quarter, and has begun selling its low-cost devices in greater China, India, and some countries in Southeast Asia.